Ignitions and Electrical› Ignition Components

Crown Automotive

Spark Plug for Select 1978-1980 Jeep CJ-5, CJ-7, SJ, J-Series w/ 4.2L Engine Crown Automotive

$7.22

SKU: C01X 4318137

Special Order
Special Order
Ships in 4–6 weeks
Free Shipping over $200
$100 Minimum Order
Non-Returnable Item
INSTALL DIFFICULTY
DIY PRO SHOP

Easy — 1–2 hours

Overview

The Crown Automotive 4318137 is a spark plug designed for specific vehicle applications. This spark plug features a copper or nickel alloy electrode and is manufactured to OE standards for proper fit and performance. It has a 14mm thread size, a .750 inch reach, and is a resistor type.
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Part #: 4318137

Spark Plug for Select 1978-1980 Jeep CJ-5, CJ-7, SJ, J-Series w/ 4.2L EngineFeatures and Benefits:(6) Required12-Month WarrantyDirect ReplacementFor Models w/ 4.2L EngineSold IndividuallyDetails:Material: Ceramic, MetalColor: Silver, WhiteInterchange: J3231345, RN13LYCApplication: 1978-1980 Jeep CJ-5 w/ 4.2L Engine; 1978-1980 Jeep CJ-7 w/ 4.2L Engine; 1978-1980 Jeep J-Series J-10 w/ 4.2L Engine; 1978-1980 Jeep J-Series J-20 w/ 4.2L Engine; 1978-1980 Jeep SJ Cherokee w/ 4.2L Engine; 1978-1980 Jeep SJ Wagoneer w/ 4.2L EngineCrown Automotive carries over 9600 unique quality replacement parts encompassing over 766,000 different applications for every model of Jeep produced since 1941.

Features:

  • For Models w/ 4.2L Engine
  • Sold Individually
  • (6) Required
  • Direct Replacement
  • 12-Month Warranty

Spark Plug for Select 1978-1980 Jeep CJ-5, CJ-7, SJ, J-Series w/ 4.2L Engine

Product descriptions are provided by our supplier partners and may not always be perfectly accurate. Not sure this fits? or call (760) 282-4645 and we’ll verify before you order.

Fitment

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Specifications

BrandCrown Automotive
Part NumberC01X 4318137
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Returns & Fitment

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

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Shipping

Orders are processed in 1–3 business days. In stock parts ship promptly from our partner network. Special-order items either aren’t currently stocked or are built to your spec — expect 4–6 weeks. If a part goes on backorder while your order is in the queue, we’ll reach out and work through discounted alternatives together.

Free shipping over $200 in the continental US. Alaska, Hawaii, U.S. territories (Puerto Rico, U.S. Virgin Islands, Guam, American Samoa, and the Northern Mariana Islands), and international orders carry surcharges — most appear at checkout. Some exceptions (LTL freight, or suppliers who quote freight only after we place the order) won’t. In those cases we’ll reach out with the exact charge before your order moves forward.

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